ChatGPT WhatsApp: Summarize Your Group Chats and Catch Up Fast

The fastest way to use ChatGPT with WhatsApp today is to bring your WhatsApp chats into ChatGPT, not the other way around. Link WhatsApp to ConnectChats, add it to ChatGPT or Claude once, and then type “What did I miss on WhatsApp?”. Your AI reads the messages since you last opened each chat and gives you the short version: who needs an answer, what was decided and what can wait.

In short:

• Summaries start where you stopped reading. By default, your AI gets every message since you last read a chat, so “what did I miss” means what you really missed.
• You pick the chats. Your AI only sees the chats you switch on. Everything else stays invisible to it.
• Your AI writes the summary. ConnectChats hands ChatGPT or Claude the messages, and you choose the format: bullets, one line per chat, a table, or another language.
• Free to start. The free plan links 2 chat apps and works in every supported AI app.

This guide explains why the old ChatGPT WhatsApp number is not the answer anymore, how a WhatsApp chat summary works with ConnectChats, how to set it up in ChatGPT and Claude, and which prompts get the most useful summaries of a busy WhatsApp group chat.

Why “ChatGPT on WhatsApp” Did Not Solve the Catch-Up Problem

For a while, the obvious way to combine ChatGPT and WhatsApp was 1-800-ChatGPT, OpenAI’s official WhatsApp number. You saved it as a contact and chatted with the bot like with a friend. That stopped working on January 15, 2026, after Meta changed its WhatsApp Business terms for AI providers (9to5Mac). ConnectChats keeps a full timeline of what happened to 1-800-ChatGPT.

Even when it worked, that bot had a blind spot. It only knew what you typed to it. It could not see the family group, the project chat or the 40 unread messages from your building’s residents. To summarize those, you had to export the chat or copy and paste messages by hand.

The other option is built into WhatsApp itself. Message Summaries uses Meta AI to summarize the unread messages in one chat, runs on what WhatsApp calls Private Processing, and is optional and off by default (WhatsApp Blog). It is useful inside a single chat, but it only works with Meta AI, it rolls out market by market, and it does not answer questions across all your chats at once.

How a WhatsApp Chat Summary Works With ConnectChats

ConnectChats is a remote MCP server. MCP, the Model Context Protocol, is an open-source standard for connecting AI applications such as Claude or ChatGPT to external systems (modelcontextprotocol.io). In practice it means your AI app can call a small set of ConnectChats tools when you ask about your messages.

The tool behind every summary is get_messages_to_summarize. Here is what happens when you ask “What did I miss in the school group?”:

1. Your AI finds the chat. It lists your shared chats, unread first, and picks the school group.
2. ConnectChats returns the new messages. Without a date, that is everything since you last read the chat in WhatsApp. With a date (“since Monday”), it starts there instead.
3. Your AI writes the summary. ConnectChats does not run a summarizer of its own. ChatGPT or Claude writes the summary in the style you asked for.

A few limits are worth knowing before you rely on it:

• Up to 300 messages per call. For a longer stretch, your AI reads more messages and summarizes in parts.
• Media shows up as text. Photos, videos and voice notes appear as short descriptions with their captions, so a summary cannot tell you what was in a photo.
• Summaries are not stored. ConnectChats stores messages, not summaries. The summary stays in your AI app’s conversation.
• Several chats at once. Your AI calls the tool once per chat and combines the results into one answer.

How to Connect WhatsApp to ChatGPT

Setup takes a few minutes and you only do it once. You need a computer for the ChatGPT part, because custom MCP servers are added in ChatGPT on the web.

Step 1: Link WhatsApp to ConnectChats

1. Create your account. Open connectchats.com/app and sign up with a passkey. There is no password and no email.
2. Choose WhatsApp. Pick Link a chat app, then WhatsApp. A QR code appears.
3. Scan it from your phone. In WhatsApp, open Settings on iPhone or the three-dot menu on Android, tap Linked devices, then Link a device, and scan the code. No camera handy? Use a pairing code instead.
4. Share the chats you want summarized. Your chats appear in the dashboard within a few minutes. Turn on Share with my AI for each chat your AI may read.

ConnectChats joins your account as a linked device, the same way WhatsApp Web does, and uses one of the four linked device slots WhatsApp gives each account. Each linked chat starts with its last 200 messages, then every new message arrives as it is sent.

Step 2: Add ConnectChats to ChatGPT

1. Open the plugins page. In ChatGPT on the web, go to chatgpt.com/plugins, select the plus button and choose Add custom MCP server.
2. Enter the server. Name it ConnectChats, paste https://api.connectchats.com/mcp as the server URL and choose OAuth.
3. Confirm and create. Read the warning, select I understand and want to continue, then Create as a plugin.
4. Sign in. ChatGPT opens the ConnectChats sign-in page. Confirm with your passkey and allow access.

Which ChatGPT plans can add a custom MCP server has changed several times, and on some plans custom servers can read but not take actions. Reading and summarizing work there. ConnectChats keeps an up-to-date WhatsApp to ChatGPT setup page with the current notes.

Step 3: Ask for your first summary

Start a new chat, select ConnectChats and ask “What did I miss on WhatsApp?”. The answer below took 23 seconds for five chats with 14 unread messages.

Try ConnectChats

Link WhatsApp once and ask ChatGPT, Claude, Grok, Manus or Muse what you missed. Free for your first 2 chat apps, no card needed.

Get Started →

Summarize WhatsApp Chats in Claude Instead

ConnectChats works the same way in Claude, and the same account carries over, with the same linked chats and sharing choices. Claude supports remote MCP servers as custom connectors on every plan, including Free, which is limited to one custom connector (Claude Help Center).

1. Open connectors. In Claude on the web or desktop, go to Customize, then Connectors.
2. Add a custom connector. Click + Add, then Add custom connector. Name it ConnectChats, paste https://api.connectchats.com/mcp as the URL and click Continue.
3. Sign in. Keep the detected sign-in settings, click Add, then connect and confirm with your passkey.
4. Switch it on in a chat. Click + at the lower left, choose Connectors and make sure ConnectChats is on.

Claude connects to remote MCP servers from Anthropic’s cloud, not from your computer, so nothing has to stay running on your side. Once added on the web, the connector also works in the Claude apps for iPhone and Android.

Prompts for a Better WhatsApp Group Chat Summary

The summary is your AI’s answer, so the prompt shapes it. These work well for busy groups:

Three habits make a summary of a WhatsApp group chat more reliable:

• Ask for names and numbers in bold. Dates, prices, addresses and reference numbers are what you usually need to act on.
• Ask what is waiting on you. “Who needs an answer from me?” is often more useful than a full recap.
• Check the original for tone. A summary flattens nuance. When the wording matters, ask your AI to quote the exact message.

If you run a team on Telegram instead, the same catch-up idea applies to bots that live inside the group, as covered in our guide to an AI chatbot for Telegram groups. And for meetings rather than chats, see how ChatGPT turns meeting transcripts into notes.

Privacy: What Your AI Can and Cannot See

Giving an AI access to your chats deserves a careful look. ConnectChats is built around a few rules:

• Only shared chats. A chat you have not shared cannot be listed, read, searched or summarized. Unshare it and it is gone from every AI app.
• Encrypted storage. Stored messages are encrypted with a key that only your passkey can unlock.
• No training. ConnectChats never trains models on your messages and never sells your data.
• Limited retention. The free plan keeps messages for 30 days, then deletes them. Unlink WhatsApp and its chats and messages are deleted.

Keep in mind that whatever a tool call returns goes to the AI app you asked, so ChatGPT’s or Claude’s own data policy applies to the messages it summarizes. ConnectChats also sits on your own account, so it records what you receive. If you also want a record of voice and video calls, read our guide on how to record WhatsApp calls.

What It Costs

Scheduled digests, such as a morning brief that arrives on its own, are planned but not available yet. Today you get the same digest by asking your AI. The summarize chats feature page tracks what ships next.

FAQ

Conclusion

ChatGPT and WhatsApp work best together when ChatGPT can see the chats you actually missed. With ConnectChats, you link WhatsApp once, choose which chats to share, and ask ChatGPT or Claude for a WhatsApp chat summary whenever a group runs away from you. Summaries start where you stopped reading, your AI writes them in the format you want, and nothing is sent to anyone.

Start with the two or three groups that cost you the most scrolling. Add ConnectChats for free and ask your AI what you missed.